Harddisc free space: 10MB plus the amount needed to temporarily store downloaded emails before they are forwarded to Exchange - use the maximum size of your internet provider's POP3 or IMAP mailbox to be on the safe side.
Monitor & graphics: No special requirements.
Network cards: One network adapter is sufficient but POPcon also works with two or more cards.
Internet connection
Any internet connection via dial-up or routers as long as POPcon can connect to POP3 and IMAP ports on your ISP mailbox servers.